補(bǔ)全對(duì)話

提示：李明打電話給 David, 邀請(qǐng)他下星期日去博物館看展覽。

（L=Li Ming; D=David)

L: Hello. This is Li Ming speaking. May I speak to David?

D:     51   . What's up, Li Ming?

L: What are you going to do next Sunday?

D: Nothing much. Do you have any ideas?

L:    52   ? There's a Russian oil painting exhibition there.

D: Good idea!    53   ?

L: Bus 202 will take you there.

D: Good.   54   ，then？

L: Let's meet just at the gate of the museum.

D:   55   ?

L: Half past nine.

D: All right. See you then.

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